1 /* 2 ** Zabbix 3 ** Copyright (C) 2001-2021 Zabbix SIA 4 ** 5 ** This program is free software; you can redistribute it and/or modify 6 ** it under the terms of the GNU General Public License as published by 7 ** the Free Software Foundation; either version 2 of the License, or 8 ** (at your option) any later version. 9 ** 10 ** This program is distributed in the hope that it will be useful, 11 ** but WITHOUT ANY WARRANTY; without even the implied warranty of 12 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 ** GNU General Public License for more details. 14 ** 15 ** You should have received a copy of the GNU General Public License 16 ** along with this program; if not, write to the Free Software 17 ** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 18 **/ 19 20 #ifndef ZABBIX_PERSISTENT_STATE_H 21 #define ZABBIX_PERSISTENT_STATE_H 22 23 #include "common.h" /* for SEC_PER_DAY */ 24 #include "md5.h" /* for MD5_DIGEST_SIZE, md5_byte_t */ 25 #include "zbxtypes.h" /* for zbx_uint64_t struct st_logfile; */ 26 #include "zbxalgo.h" 27 28 #define ZBX_PERSIST_INACTIVITY_PERIOD SEC_PER_DAY /* the time period after which persistent files used by log */ 29 /* items which are not received in active check list can be */ 30 /* removed */ 31 typedef struct 32 { 33 char *key_orig; 34 char *persistent_file_name; 35 /* data for writing into persistent file */ 36 char *filename; 37 int mtime; 38 int seq; 39 int incomplete; 40 int copy_of; 41 zbx_uint64_t dev; 42 zbx_uint64_t ino_lo; 43 zbx_uint64_t ino_hi; 44 zbx_uint64_t size; 45 zbx_uint64_t processed_size; 46 int md5_block_size; 47 md5_byte_t first_block_md5[MD5_DIGEST_SIZE]; 48 zbx_uint64_t last_block_offset; 49 md5_byte_t last_block_md5[MD5_DIGEST_SIZE]; 50 } 51 zbx_pre_persistent_t; 52 53 ZBX_VECTOR_DECL(pre_persistent, zbx_pre_persistent_t) 54 55 typedef struct 56 { 57 char *key_orig; 58 time_t not_received_time; /* time the item was not received anymore in the list of active checks */ 59 char *persistent_file_name; 60 } 61 zbx_persistent_inactive_t; 62 63 ZBX_VECTOR_DECL(persistent_inactive, zbx_persistent_inactive_t) 64 65 char *zbx_create_persistent_server_directory(const char *base_path, const char *host, unsigned short port, 66 char **error); 67 char *zbx_make_persistent_file_name(const char *persistent_server_dir, const char *item_key); 68 int zbx_read_persistent_file(const char *filename, char *buf, size_t buf_size, char **err_msg); 69 int zbx_remove_persistent_file(const char *pathname, char **error); 70 void zbx_write_persistent_files(zbx_vector_pre_persistent_t *prep_vec); 71 void zbx_clean_pre_persistent_elements(zbx_vector_pre_persistent_t *prep_vec); 72 73 void zbx_add_to_persistent_inactive_list(zbx_vector_persistent_inactive_t *inactive_vec, char *key, 74 const char *filename); 75 void zbx_remove_from_persistent_inactive_list(zbx_vector_persistent_inactive_t *inactive_vec, char *key); 76 void zbx_remove_inactive_persistent_files(zbx_vector_persistent_inactive_t *inactive_vec); 77 78 int zbx_find_or_create_prep_vec_element(zbx_vector_pre_persistent_t *prep_vec, const char *key, 79 const char *persistent_file_name); 80 void zbx_init_prep_vec_data(const struct st_logfile *logfile, zbx_pre_persistent_t *prep_vec_elem); 81 void zbx_update_prep_vec_data(const struct st_logfile *logfile, zbx_uint64_t processed_size, 82 zbx_pre_persistent_t *prep_vec_elem); 83 int zbx_restore_file_details(const char *str, struct st_logfile **logfiles, int *logfiles_num, 84 zbx_uint64_t *processed_size, int *mtime, char **err_msg); 85 #endif 86